Grinding or pulverizing machine.



A. E. PETERSEN GRINDING 0R PULVERIZING MACHINE.

APPLICATION FILED MAB. 17, 1909.

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4 SHEETS-*SHEET ou E S 8 M .l 7 W A. E. PETERSEN. GRNDING 0R PULVERIZING MACHINE.

APPLIUATION FILED MAR. 17. 1909.

Patented Dec. 7, i909. 4 SHEETS-SEEE s.

UGUSLE H. PETERSEN, 0F NEW YORK, N. Y.

GRINDINQ 0R PULVERIZING MACHINE.

Specicaton of Letters Patent.

Patented Dec. 7, 1909.

application inea March 17, 1909. semi No. 484,025.

To all whom it may concern:

Be it known that I, AUGUST H. PETERSEN, a citizen of the United States, and a resident of the borough of Brooklyn, in the city and State of New York, have. invented certain new and useful Improvements in Grinding or Pulverizing Machines, of which the following is a specification.

My invention relates to means for grind ing, disintegrating or pulverizing various substances, as for instance rubber, so that the same may be reduced to a finely granular state and/be better adapted for such subsequent treatment or manipulation as may be desired.

The invention consists in the novel construction, arrangeineiit and combination of various devices and parts as hereinafter more particularly described.

In the accompanying drawings Figure 1 is a top or plan view of an apparatus constructed according to my invention; Fig. 2 is a transverse vertical section taken on the line 2 2 of Fig. 1; Fig. 3 is a transverse vertical section of a portion of the apparatus taken on the line 3 3 of Fig. 1; Fig. 4 is a horizontal section take-n on the line {1-4 of Fig. 3; and Fig. 5 is a view of the invention comprising a tank for holding a solvent as hereinafter described.

In carrying my invention into effect I provide a suitable frame 7, mounted on legs 20, which are securely attached in some adequate manner to a base or foundation S. Suitably jouriialed in the frame] are shafts Stand 10, each of which bears a. crushing cylinder or roller, which are designated respectively 11 and 12. The roller 11 is shown provided with longitudinal grooves 21, but these are not essential to the invention. The shaft 9 is provided at one end with a large gear wheel 13 rigidly attached thereto and, at the other end with a smaller gear wheel 14 which gears with a corresponding gear wheel la; on the shaft 10. Below the large gear wheel 13 is a driving gear wheel 16 which communicates power to the wheel 13 and by means of which the two shafts and the tivo crushing rollers are driven. This driving gearjvheel 16 is loose on its shaft 17 and motion is communicated to it by means of the clutch 18 which is fast on tn he shaft 17. Power may be communicated to this shaft 17 'by pull-ey and belt, orvin any desired manner.

Inside of the frame 7, and on each side thereof, a short distance below the ends of4 the cylinders .11 and 12, are secured brackets 30, and extending across from the ends of these `brackets are transverse members 31, the'whole forming a. rectangular frame below the cylinders. Secured to this frame, and extending across the space between saine and the cylinders, are plates 32, curvedupward as shown in Fig. 9 so as to follow approximately the curve of the cylinders, and

having their adjacent upper edges rigidly secured together. To the lower or outer edges of the plates 32 are hinged other plates 33, also curved to conform to the curve of the cylinders, and of sufficient size to reach approximately halfway around the saine and up to a point about over the highest part. To the upper edges of these plates 33 are secured stra ps 34, and when the plates 33 are hinged up into the position shown 1n Fig. 2, these straps 34 extend over the tops of the cylinders and meet at or near the middle point (see Fig. l) and may then b secured together by bolts 35 (see Figs. 1 an 2). The plates 33 are provided with perforatioiis 36 near their lower' edges. One of the plates 33, as for instance the one shown on the right in Fig. 2, may be provided with bolts 37 which engage with sockets in the frame 7. The plates 32'aiid also the platesl 33 are provided with flanges, shown more particularly in Fig. 3 of the drawings. and designated respectively 3S and 39. These Hang-es extend inwardly a short distance along and contiguous or nearly so with the ends ofthe cylinders 11 and 12.

On each side of the machine, and bolted .A

or otherwise rigidlysecured to the topof the frame 7, is a plate 40, having strengthening ribs 41 and a laterally projecting lug 42. Inside of each of these plates 40 is a movable plate '43, which is supported by a screw 44 which passes through said lug 42 and is thereby vertically adjustable. Secured to the inner and upper corners of each of these plates 43 are guides or detlectors 45. The plates 43 extend downwardand are of such a shape as t-o extend partly down between the cylinders 11 and 12, as best shown in Fig. 3, and the delectors 45 also extend down so as to nearly contact with the surface of the c linders.

The cyliii ers 11 and y12 are hollow, and the shafts 9 and 10 u on which they are mounted are perforated) so as to communi cate with the hollow interior' of the cylin- .passed again between the'same.

plurality ot sections, pivotally united to each other. partially surrounding each roller and provided with an inturned end flange adjacent to the ends ot' the rollers and'also provided with perforations, said shields be ing adapted to receive the material being ground, after it has passed between the rollers, Vto permit the pulver-ized portion of such material to pass through said perforations and to permit the remainder of the material to be carried around by saidrollers an 5. In. a grinding or pulverizing machine, the combination with grinding Cylinders or rollers, means ada ted to operate the same, and means adapte to direct the material to be ground toward the middle part of the f rollers and away from the ends thereof, of

a shield or easing partially surroundingeach roller and provided with an inturned end flange adjacent to the ends of the rollers and also provided with perforation's, said shields being adapted to receive the inaterialbeing ground, after it has passed between `the rollers, to permit the pulverized portion of such material to pass 'thrtgugh v said perforations and -to permit the rerollers, means adapted to operate the same,

and means adapted to direct the material to be ground toward vthe middle partof the rollers and away from the ends thereof, of a shield or casing partially surrounding each roller composed of a plurality of sections pivotally united and provided with means adapted to hold same in position adjacent to the roller, and provided with an inturned end flange adjacent to the ends of the rollers and'also provided with perforations, said shields being adapted to receive the material being ground, after it has passed between the rollers, to permit the pulveriied portion of such material to pass through said erforations and to permit the -remainder o' the material to be lcarried aroundbysa'id rollers and passed again .between the same.

AUGUST H. BETERSEN. l In presence 0t v Oma-mu N. B. HASTINGS, WILLIAM S. TOWNER. 

